BART riders face another Oakland track closure Labor Day...

1of 14FILE-- Commuters wait on the plaform as a train arrives at the 19th Street BART station in Oakland, Calif. on Thursday, Aug. 2, 2018. BART riders can expect laborious bay crossings this holiday weekend as the transit system again shuts down service between West Oakland station and the 19th Street and Lake Merritt stations.Photo: Paul Chinn / The Chronicle

2of 14FILE-- BART riders can expect laborious bay crossings this holiday weekend as the transit system again shuts down service between West Oakland station and the 19th Street and Lake Merritt stations.Photo: BRANT WARD / SFC

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4of 14Respect the line. Don't be that person rolling up to the yellow strip and jumping the queue when the train arrives.Photo: Gabrielle Lurie, The Chronicle

5of 14Do everyone a favor and move the hand-hold straps so they’re not all bunched together. Or, if you're tall enough, switch spots so your shorter commute buddy can use the strap instead.Photo: Michael Macor, The Chronicle

6of 14If you're near the doors and everyone is off-loading, do the crowd a courtesy and exit too. You're taking up valuable space in the doorway and slowing down the disembarking process. The train won't leave without you; just hop back in when everyone is done exiting.Photo: Jessica Olthof, The Chronicle

7of 14On that note, let everyone disembark from the train before pushing your way into the car. It's common courtesy, and it gets everyone on the train faster.Photo: Terray Sylvester, The Chronicle

8of 14Move as far in as you can. We know that when you got on there was plenty of space. But the train is going to fill up, so be a good BART citizen and preemptively move away from the doors.Photo: Lea Suzuki, The Chronicle

9of 14Is the train full? Then please take off your backpack/wide purse/yoga mat. You'll save someone room, and you won't have to keep hitting other people with your bag.Photo: Liz Hafalia, The Chronicle

10of 14Don't put your luggage in front of you if you’re in the four seat-quad. Put it to the side (like this considerate passenger) so someone can take those seats.Photo: Liz Hafalia, The Chronicle

11of 14When you're riding the escalator, don't forget it's standing on the right and walking on the left. This is an especially important rule on the way down to the platform, when people may be hurrying to catch a train.Photo: Michael Macor, The Chronicle

12of 14Give those headphones a check. Your music might sound great to you, but you don't want those beats escaping into the car. Nothing's more annoying than being subjected to someone else's musical preferences.Photo: Brand X Pictures, Getty Images

13of 14Give your seat up to people who need it. This should go without saying... but we all know it doesn’t.Photo: Katy Raddatz, The Chronicle

14of 14Always take the seat closer to the window, especially if you're in the four-seater orientation. It's considerate — and you're less likely to be trampled on by someone trying to get to the empty seat.Photo: Michael Short, Special to the Chronicle

The Labor Day weekend closure, the third in a series of four, will force travelers heading in either direction to take a 10- to 15-minute free bus ride to make their connections, according to the transit agency.

Travel on the Richmond-Fremont line will be unaffected by the closure. Service on Sunday and Labor Day on Monday will begin at 8 a.m.

Rides between the Oakland stations hit by the closure will halt at the end of regular service early Saturday morning and won’t resume until the first scheduled trains on Tuesday morning. AC Transit will run shuttles closing the gap.

Passengers using the Lake Merritt Station or 12th Street Station in downtown Oakland will need to take trains to the 19th Street stop to catch the shuttles to West Oakland Station. No stations will be closed.

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BART scheduled the weekend closures to do major overhauls of the tracks and infrastructure between the stations as part of the Measure RR modernization program.

While commuters are hopping on buses, more than 100 workers will replace switches that move trains between stretches of track, thousands of feet of rail, railroad ties, cushioning pads and cover boards that protect the electric third rail.

The goal is to create a smoother, quieter and more efficient ride by upgrading the transit system’s infrastructure, some of which hasn’t been improved since BART started service in 1972.

BART will repeat the same shutdown once more over the Sept. 22-23 weekend. Though more weekend closures for track work are planned, that period will be the final closure in 2018, said Alicia Trost, a BART spokeswoman.

Michael Cabanatuan has covered all things transportation for the San Francisco Chronicle — from BART strikes, acrobatic bridge construction and dark dirty tunnel excavations to the surging ridership on public transportation and the increasing conflict as cars, bikes and pedestrians struggle to coexist on the streets. He’s ridden high-speed trains in Japan, walked in BART’s Transbay Tube and driven to King City at 55 mph to test fuel efficiency.

He joined The Chronicle as a suburban reporter and deputy bureau chief in Contra Costa County, and has also covered the general assignment beat. In addition to transportation, Michael covers a variety of Bay Area news, including breaking news events. He’s been tear-gassed covering demonstrations in Oakland and exposed to nude protesters in the Castro District. Michael is also a regular contributor to the City Insider column and blog.